As of February 2020, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak started in China in December 2019 has been spreading in many countries in the world. With the numbers of confirmed cases are increasing, information on the epidemiologic investigation and clinical manifestation have been accumulated. However, data on viral load kinetics in confirmed cases are lacking. Here, we present the viral load kinetics of the first two confirmed patients with mild to moderate illnesses in Korea in whom distinct viral load kinetics are shown. This report suggests that viral load kinetics of SARS-CoV-2 may be different from that of previously reported other coronavirus infections such as SARS-CoV.
China ; Coronavirus ; Coronavirus Infections ; Humans ; Kinetics ; Korea ; SARS Virus ; Severe Acute Respiratory Syndrome ; Viral Load

Autopsy ; Betacoronavirus ; COVID-19 ; Coronavirus Infections ; Forensic Medicine ; Humans ; Pandemics ; Pneumonia, Viral ; Severe acute respiratory syndrome-related coronavirus ; SARS-CoV-2 ; Severe Acute Respiratory Syndrome

Autopsy ; Betacoronavirus ; COVID-19 ; Coronavirus Infections ; Humans ; Pandemics ; Pneumonia, Viral ; Severe acute respiratory syndrome-related coronavirus ; SARS-CoV-2 ; Severe Acute Respiratory Syndrome

Coronavirus Infections ; epidemiology ; Humans

OBJECTIVE: To systematically summarize the clinical features of coronavirus disease 2019 (COVID-19) in children. METHODS: PubMed, Embase, Web of Science, The Cochrane Library, CNKI, Weipu Database, and Wanfang Database were searched for clinical studies on COVID-19 in children published up to May 21, 2020. Two reviewers independently screened the articles, extracted data, and assessed the risk of bias of the studies included. A descriptive analysis was then performed for the studies. Related indices between children with COVID-19 and severe acute respiratory syndromes (SARS) or Middle East respiratory syndrome (MERS) were compared. RESULTS: A total of 75 studies were included, with a total of 806 children with COVID-19. The research results showed that the age of the children ranged from 36 hours after birth to 18 years, with a male-female ratio of 1.21 : 1. Similar to SARS and MERS, COVID-19 often occurred with familial aggregation, and such cases accounted for 74.6% (601/806). The children with COVID-19, SARS, and MERS had similar clinical symptoms, mainly fever and cough. Some children had gastrointestinal symptoms. The children with asymptomatic infection accounted for 17.9% (144/806) of COVID-19 cases, 2.5% (2/81) of SARS cases, and 57.1% (12/21) of MERS cases. The children with COVID-19 and MERS mainly had bilateral lesions on chest imaging examination, with a positive rate of lesions of 63.4% (421/664) and 26.3% (5/19) respectively, which were lower than the corresponding positive rates of viral nucleic acid detection, which were 99.8% and 100% respectively. The chest radiological examination of the children with SARS mainly showed unilateral lesion, with a positive rate of imaging of 88.9% (72/81), which was higher than the corresponding positive rate of viral nucleic acid detection (29.2%). Viral nucleic acid was detected in the feces of children with COVID-19 or SARS, with positive rates of 60.2% (56/93) and 71.4% (5/7) respectively. The children with COVID-19 had a rate of severe disease of 4.6% (31/686) and a mortality rate of 0.1% (1/806), the children with SARS had a rate of severe disease of 1.5% (1/68) and a mortality rate of 0%, and those with MERS had a rate of severe disease of 14.3% (3/21) and a mortality rate of 9.5% (2/21). CONCLUSIONS Children with COVID-19 have similar symptoms to those with SARS or MERS, mainly fever and cough. Asymptomatic infection is observed in all three diseases. Children with COVID-19 or SARS have milder disease conditions than those with MERS. COVID-19 in children often occurs with familial aggregation. Epidemiological contact history, imaging examination findings, and viral nucleic acid testing results are important bases for the diagnosis of COVID-19.
Betacoronavirus ; Child ; Coronavirus Infections ; physiopathology ; Cough ; virology ; Female ; Fever ; virology ; Humans ; Male ; Middle East Respiratory Syndrome Coronavirus ; Pandemics ; Pneumonia, Viral ; physiopathology ; Severe Acute Respiratory Syndrome ; physiopathology ; virology

Objectives. The ongoing Coronavirus disease 2019 (COVID-19) pandemic has disrupted healthcare systems worldwide. This study aimed to document the effect of COVID-19 on osteosarcoma treatment pathways in the Philippine General Hospital (PGH) and determine if there were any delays. Method. A retrospective review of osteosarcoma patients treated at the PGH from January 1, 2019 – January 1, 2020 (pre-COVID-19) was compared to those treated during the COVID-19 pandemic from March 1, 2020 – September 1, 2020. Rates of diagnosed osteosarcoma, admission for chemotherapy, admission for surgery, treatment abandonment, metastatic disease on presentation, 1-year mortality, and amputation were calculated and compared between the two groups. Results. From March to September 2020, 11 newly diagnosed osteosarcoma patients sought consult at the PGH. Only one patient sought consult during the initial 3-4 months of the study, suggesting that patients delayed seeking healthcare during the period of enhanced community quarantine. Patients seen during the pandemic had a higher rate of metastatic disease on presentation, reflecting the delay in diagnosis. Due to COVID-19 restrictions early in the pandemic, osteosarcoma patients were coordinated and referred to outside hospitals for intravenous chemotherapy and surgery. Normalization of services (hospital admissions, limb salvage surgeries) were seen at the later stages of the study, corresponding to the loosening of the quarantine. Conclusions. Osteosarcoma patients experienced delays in seeking consult, diagnosis, and treatment at the PGH due to the COVID-19 pandemic. Early indicators suggest worse outcomes for these patients due to the delays. Strategies employed during the pandemic, such as networking of care and telemedicine, may help in future outbreaks.
Coronavirus ; COVID-19 ; Coronavirus Infections ; Pandemics ; Osteosarcoma

In 2015, there was a Middle East respiratory syndrome (MERS) outbreak in Korea. Interestingly, most of the cases were nosocomial infection and significant numbers of healthcare workers (HCWs) were infected. There were various causes, but this study focused on HCWs and their ability to self-protect from infectious materials. HCWs did not receive sufficient instruction or training on biosafety, including how to use personal protection equipment and risk assessment at the beginning of the outbreak. Previous experience from an outbreak of severe acute respiratory syndrome or Ebola showed that HCWs must self-protect from infection sources, but HCW infection occurred again with this MERS outbreak. Therefore, the concept of biosafety self-protection must be emphasized so that HCWs can protect themselves from diseases and avoid spreading them.
Communicable Diseases, Emerging* ; Coronavirus Infections ; Cross Infection ; Delivery of Health Care ; Humans ; Korea ; Risk Assessment ; Severe Acute Respiratory Syndrome

In the twenty-first century, high contagious infectious diseases such as SARS (Severe Acute Respiratory Syndrome), MERS (Middle East Respiratory Syndrome), FMD (Foot-and-Mouth Disease) and AI (Avian Influenza) have become very prevalent, causing treat harm to humans and animals in aspect of public health, and economical issues. The critical problem is that newly-reported infectious diseases that humans firstly experience are expected to continue to emerge, and these diseases will be spreading out rapidly. Therefore, rapid and safe supplies of effective vaccines are most pivotal to prevent the rapid prevalent of new infection, but international standards or assessing protocol the safety of urgent vaccines are not established well. In our previous study, since we established a module to assess the brain safety of urgent vaccines, therefore, it is necessary to verify that this established module for assessing brain safety could work effectively in commercially available two vaccines (one killed- and on live-vaccines). We compared the results of Evans blue (EB) assay and qPCR analysis by injection of two kinds of vaccines, PBS and Lipopolysaccharide (LPS) under the condition of the module previously reported. We confirmed that the brain safety test module for urgent vaccine we established is very reproducible. Therefore, it is believed that this vaccine safety testing method can be used to validate brain safety when prompt supply of a newly developed vaccines is needed.
Animals ; Brain ; Communicable Diseases ; Coronavirus Infections ; Equipment and Supplies ; Evans Blue ; Humans ; Methods ; Public Health ; Severe Acute Respiratory Syndrome ; Vaccines

Betacoronavirus ; Coronavirus Infections ; epidemiology ; transmission ; Disease Outbreaks ; Humans ; Pandemics ; Pneumonia, Viral ; epidemiology ; transmission ; Severe Acute Respiratory Syndrome ; epidemiology

Coronavirus ; Coronavirus Infections ; epidemiology ; Humans ; Respiratory Tract Infections ; epidemiology